Henrique de Castro, One of the Highest-Paid Silicon Valley Executives, to Depart This Week

Yahoo Inc. CEO Marissa Mayer is parting ways with her top executive, an expensive setback in her effort to turn around the struggling Internet portal.

Henrique de Castro, the chief operating officer Ms. Mayer poached from Google Inc. in 2012, is departing this week. One of the highest-paid executives in Silicon Valley, Mr. de Castro exits after about a year on the job with a severance package that could be worth more than an...

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